Synthesis: Give the correct starting material, reagents used or product as indicated. If you are not sure which one is being asked for, ask! Indicate stereochemistry where necessary. 1) 03 2) DMS 3) H₂O 1) 1 eq HCI 2) 1 eq HBr ?

4. Synthesize the following compound. You may use benzene, acetylene, ethanol and any inorganic reagents. O₂N

Provide The major organic products for each reaction

6) Give the products of each of the following reactions. a) b) d) H Li, NH3 CH3CH₂OH xo Na₂Cr₂O7 H₂O, H₂SO4, A H₂O LI, NH3 CH₂CH₂OH

Provide a step-by-step mechanism to account for the product of each of the following reactions. Show the structure of each of the intermediates and use curved arrows to indicate electron flow in each of these steps.

Write structures for products A, B, C, and D, showing stereochemistry.

Each of these reaction produces ONE MAJOR PRODUCT. In each case, draw this product in the box provided, including appropriate stereochemistry when applicable. For multi-step reactions, just give the FINAL product, no intermediates.

Compound A and compound B are in equilibrium. Write a stepwise mechanism from compound Ato compound B showing ALL intermediates. Use curved arrows to symbolize the flow of electrons to show how each of the intermediates and products are formed. Show all lone pairs and formal charges. Lastly, explain which compound (Aor B) will be in higher concentration.

Provide structure(s) for the starting material(s), reagent(s) or the major organic product(s) of each of the following reactions.

Pleas explain how this process occurs. Identify SN1, SN2, E2, E1, nucleophiles and electrophiles.